Improvement in window-ventilatobs



@nimh tstrsgstwt @frn R. H. LON G, OF GIN CINN ATI, OHIO, SSIGNOR TOHIMSELF AND R. T. TRALL, OF NEW YORK CITY.

Letters Patent No. 81,184, dated August 18, 1868.

IMPROVEMENT IN WINDOW-VENTILATORS.

.To ALL wHoM 1T MAY coNcEnN;

Beit known that I, R. I-I. LONG, ofCincinneti, in the county ofHamilton, and Stato of-Ohio, have invented a new and useful Improvementin Window-Ventilatore; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable othersskilled -in the art to make and use the same, reference being had tovthe accompanying drawings, forming part of this'speciiication.

This invention has for its object the ventilation of rooms or buildingsby cutting away a portion of one of the panes of glass in awindow=sash,'and inserting in the rails surrounding said pane of glass asupplementary frame containing a piece of glass of suiiicient size toiill the opening'formedby cutting away the fixed pane.

The supplementary frame is adapted'to slide in metallic grooves set inthev side rails of the sash, and is held inany desired-position'byueansof 'a spring. To the outs'ideof this frame, along its lower edge, ashelf,` is attached for shedding rain.

In the accompanying plate of drawings my improvements inwindow-ventilators are illustrated.

Figure 1 is a side elevation partly in sect-ion, and

Figure 2 a transverse section through the line :u x, iig. 1.

Similar letters of reference indicate corresponding parts.

. In thevd-rawingsw A representsa portion of a sash-frame to a window,containing a pane of glass, B, which is cut oli across its width foronehalf, or 'nearly so,'of its length or height. The upper edge is shownin dotted lines, iig. 1.

Ineaeh side, C, ofthe sash-frame is secnreda metallic frame, D, forminga, groove or way, E, along its entirelength'. i

The sides of the4 window-sash are cut away forthe insertion of themetallic frame.

F is the: supplementaryframe, arrangedtomove within the groovesEfinwhich frame is secured a. pane of glass. i

J is afspring, 'upon one side of the supplementary frame, Iitting in thegrooves ofA the metallic guide-frame D. This spring is madeof sruihcientstr'engtlrto hold the frame F in any desired position. This frame, F, is'made of suitable size to entirely close the cutout portion oi' thesash-frame when `drawn or slid down, while,

when up, it opens such portion to the admission-or escape of air.

H, a shelf, applied to outside' of frameF, along the lower rail, whichsheli` is inclinedfupon its upper side for shedding rain, 85e.

I, a handle, on inside of frame F, for convenience of operating it.

I claim as new, and desire to secure by Letters Patent-n 1. The sidegrooves C, applied to a sash-frame surrounding a single pane of glass,in combination with the movable supplementary frame F, substantially asdescribed for the purpose specified.

2. The shaft H, applied to the supplementary sash-frame F, substantiallyas described for thc purpose specified.

R. H. LONG.

Witnesses:

BENJ. C. TRUE, E. Bnnsoor.

